<!--
 * 功能：桑基图
 * 作者：闫李壮
 * 日期：2024-06-04
-->
<template>
  <div class="chart-container">
    <a-spin :loading="loading" class="chart-view" :tip="$t('global.loading')">
      <chart :options="chartInfo.sankeyInfo" v-if="chartInfo.sankeyInfo.series.data.length"></chart>
      <a-empty v-else />
    </a-spin>
  </div>
</template>

<script setup lang="ts">
import {onMounted, ref} from "vue";
import useLoading from "@/hooks/loading";
import { getTimeObject } from "@/utils/charts";
import { getChartInfo } from "@/api/dashboard/api";

// 定义 props
const props = defineProps({
  public: {
    type: Object,
    default: () => ({}),
  },
  configType: {
    type: Number,
    default: 1,
  },
});

// 加载状态
const { loading, setLoading } = useLoading(false);

// 图表信息
const chartInfo = ref({
  cardName: '',
  sankeyInfo: {
    series: {
      data: []
    }
  }
});

// 时间选项
const timeOptions = ref<any>({});

// 时间变化处理函数
const timeBarChange = async (timer: any) => {
  timeOptions.value = timer;
  await fetchData();
};

// 获取数据
const fetchData = async () => {
  if(!props.public.cardKey || !props.public.dashboardConfigId){
    return;
  }
  setLoading(true);
  try {
    const params = {
      configId: props.public.dashboardConfigId,
      cardKey: props.public.cardKey,
      ...getTimeObject(timeOptions.value),
    };
    const res = await getChartInfo(params);
    if (res.code === 200 && res.data) {
      chartInfo.value = {
        cardName: res.data.cardName,
        sankeyInfo: chartData(res.data.sankeyInfo),
      };
    } else {
      chartInfo.value = {
        cardName: '',
        sankeyInfo: {
          series: {
            data: []
          }
        }
      }
    }
  } catch (error) {
    console.error('获取图表数据时出错:', error);
  } finally {
    setLoading(false);
  }
};

// 处理图表数据
const chartData = (option: any): any => {
  return {
    tooltip: {
      show: true,
    },
    grid: {
      top: "12%",
      left: 20,
      bottom: 0,
      right: 20,
      containLabel: true,
    },
    series: {
      type: 'sankey',
      layout: 'none',
      emphasis: {
        focus: 'adjacency',
      },
      data: option.data,
      links: option.links,
    },
  };
};
onMounted(() => {
  fetchData()
})

defineExpose({
  handleTime: (val)=>{
    timeBarChange(val);
  },
})
</script>

<style scoped lang="less">
.chart-container {
  height: 100%;

  :deep(.arco-card-body) {
    width: 100%;
    height: calc(100% - 46px);
  }

  .chart-view {
    width: 100%;
    height: 100%;

    .arco-empty {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-direction: column;
    }
  }
}
</style>
